radlink: cross-process shared thread pool — dual-path (default=upstream barrier, opt-in governor)#847

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honkstar1 wants to merge 42 commits into

EpicGames:devfrom

honkstar1:radlink-shared-pool

Commits on Jun 25, 2026

radlink: enable C11 atomics so BLAKE3 skips the lock'd CPU-feature load

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radlink: skip symbol-name string-table scan on interp-only paths

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radlink: fold CV type-index fixup into a single hash probe

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radlink: release copy-on-write input views in parallel before exit

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radlink: trim COFF symbol/section parse overhead

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radlink: cache leaf hash per bucket to avoid deref in type-dedup probe

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radlink: release the ~1GB image buffer early so reclaim overlaps the run

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radlink: memoize parsed COFF symbols per obj (kills #1 link hotspot)

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radlink: size the assigned-ti table by unique types, not total (reclaim ~3GB peak)

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radlink: slim the parsed-symbol memo (drop name, decode on demand)

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radlink: pack LNK_ParsedSymbolLite to 16B (offset + U32 value)

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radlink: garbage-collect unreferenced CodeView types before PDB emit

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radlink: /OPT:ICF identical COMDAT folding (code + read-only data), parallelized

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radlink/pdb: coalesce DBI section contributions; stabilize + parallelize GSI/PSI sort

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radlink: frontier worklist for type-GC transitive closure (perf)

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radlink: count ICF reloc slices in the parallel fill, not a serial re-parse

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radlink: skip the GC mark atomic on the already-reachable fast path

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radlink: make type-GC opt-in (/OPT:GCTYPES), default off

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radlink: parallelize the section-contrib sort for large chunks

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radlink: skip converged classes in ICF refinement

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radlink: cache symbol interp so the lib search stops re-parsing resolved symbols

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radlink: skip redundant library re-searches in the resolution fixpoint

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radlink: /OPT:ICFSTATIC -- fold static (internal-linkage) COMDATs

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radlink: header-unit IFC debug-record resolution + ICF leader-keying

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radlink perf: parallelize ICF refine round-loop (gather/scatter/survivor-emit), dense-color SoA+U32, reloc-weight load-balance, parallel fold-verify + IFC scan

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radlink perf: parallelize ICF refine per-round color group-scan (parallel prefix-sum)

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radlink perf: ICF refine round-loop -> ONE persistent-worker parallel region

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radlink perf: count-based ICF work-split (drop 5.6s reloc-weight gather) atop persistent region

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radlink perf: ICF refine dirty-class worklist tail (drop full-active re-sort, ~3-4s)

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radlink: consolidate ICF worklist + parallel IFC 0x1522 scan

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radlink: disable ICF worklist tail by default (region_cap 8->64)

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radlink ICF: parallelize cand_map build with atomic-CAS open-addressing insert

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radlink ICF: parallelize apply_ifc nonblob_complete set merge + ifc parse
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radlink perf: parallelize make_code_view_input serial setup loops

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radlink perf: ICF cand_map memset fill + image_fill single-node fast-path

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radlink perf: pow2 hash-table caps -> mask index (kill % DIV in type-merge dedup probes)

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radlink perf: per-lib frontier cursor in lib search (skip re-scanning already-searched symbols)

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radlink perf: decommit idle tctx scratch pages before PDB build

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radlink perf: free leaf bucket_arr probe tables before merge-types peak

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radlink: env-gated RADLINK_PHASE_LOG raw per-phase micros file (diagnostic, byte-neutral)

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radlink: cross-process shared thread pool (governor + fair-share barrier passes)

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radlink: dual-path thread pool (non-shared=upstream barrier, shared=governor)

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